145488185 has 8 divisors (see below), whose sum is σ = 174665160. Its totient is φ = 116337664.

The previous prime is 145488173. The next prime is 145488199. The reversal of 145488185 is 581884541.

It can be written as a sum of positive squares in 4 ways, for example, as 28761769 + 116726416 = 5363^2 + 10804^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145488185 - 2⁴ = 145488169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8729 + ... + 19161.

It is an arithmetic number, because the mean of its divisors is an integer number (21833145).

Almost surely, 2^145488185 is an apocalyptic number.

It is an amenable number.

145488185 is a deficient number, since it is larger than the sum of its proper divisors (29176975).

145488185 is a wasteful number, since it uses less digits than its factorization.

145488185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13227.

The product of its digits is 204800, while the sum is 44.

The square root of 145488185 is about 12061.8483243655. The cubic root of 145488185 is about 525.9477182539.

The spelling of 145488185 in words is "one hundred forty-five million, four hundred eighty-eight thousand, one hundred eighty-five".